Rotary snow plow



Sept. 21, 1937. J. HANSEN ROTARY SNOW PLOW Filed Aug. 6, 1936 1 1 x 8 2928 IO 33 27 2e 25 22 u \2 FIG.2.

Vlllu R O N E V N JOSEPH HANSEN mWWA AWN zflg? ATTORNEYS Patented Sept.21, 1937 unirso STATES ROTARY SNOW PLoW I 1' Joseph Hansen, Cleveland,Wis.

Application August 6, 1936, Serial No. 94,592

1 Claim.

This invention appertains to a novel appliance for removing snow fromhighways during the winter season, so that said highways can be quicklyand efficiently opened for vehicular traffic.

With the use of ordinary push snow plows, the snow is merely crowded toone side of the roadway. This snow tends to drift back on the roadway inwindy weather. Further, the accumulated banks of snow obstruct propervision and result in serious head-on collisions of automobiles travelingover the road. Likewise, with the use of plows a great length of time isrequired to open a roadway, and in some instances the plows cannot breakthrough the snow at all.

It is, therefore, one of the salient objects of my invention to providea snow .removing device so constructed and arranged as to out its Waythrough the snow, and for blowing the snow to a point distant from theroadway, whereby to 20 eliminate the forming of the said banks of snowand to permit the expeditious opening of the highway for traveling.

Another primary object of my invention is to provide a motorized snowremoving appliance em- 25 bodying side snow engaging impellers or wheelsfor cutting into the snow and for delivering the snow to a centrallydisposed blower, which functions to carry the snow a considerabledistance away from the roadway.

A further important object of my invention is the provision of a snowremoving appliance adapted to be driven over the roadway by anautomobile, truck or tractor, and which embodies an internal combustionengine for driving novelly ar- 35 ranged side snow cutters and a blowerwhich receives the snow from from said side snow cutters or impellers.

A further object of my invention is the provision of novel means forarranging the impellers and the blower on the frame of the snow removingappliance, whereby the snow can be efficiently directed toward theimpellers and blower, and whereby the snow will be effectively scrapedup from the roadway.

A still further object of my invention is to provide an improved snowremoving appliance of the .above character, which will be durable andeificient in use, one that will be comparatively simple and easy tomanufacture, and one which can be placed upon the market at a moderatecost.

With these and other objects in view, the invention consists in thenovel construction, arrangement, and formation of parts, as will behereinafter more specifically described, claimed,

and illustrated in the accompanying drawing, in which drawing:

Figure 1 is a top plan view of my improved snow appliance, showing thesame attached to a tractor of the endless chain type. 5

Figure 2 is a side elevation of the same, with parts of the snowremoving appliance shown broken away and in section.

Figure 3 is a fragmentary front elevation of my improved snow appliance.

Referring to the drawing in detail, wherein similar reference charactersdesignate corresponding parts throughout the several views, the letter Agenerally indicates my improved snow removing appliance, and T a tractorwhich can be utilized in conjunction therewith.

'In the present illustration, I have shown a tractor of the endlessdrive chain type, but it is to be understood that any other desired typeof tractor or truck can be utilized for forcing the appliance A over theroadway.

My improved appliance A preferably embodies relatively heavy sidechannel beams 5, to which is firmly secured by rivets or welding a fronthousing or scoop 6. This front housing or scoop 6 embodies a bottomscraper or shear blade 1 and inwardly inclined upright side walls 8.These side walls 8 can be connected together by a top wall 9. The frontedge of the scraper or shear blade is sharpened and, if so desired, theleading edges of the side walls 8 can also be sharpened.

In rear of the side walls 8 I arrange a relatively large blower casingI0. This casing I0 is rigidly connected with the side and. top Walls andto the frame beams of the tractor. Leading tangentially from the blowercasing I0 is a blower outlet nozzle II for the snow.

A relatively large fan wheel l2 is arranged within the blower casing I0,and the fan or blower wheel l2 preferably consists of a back discshapedhub plate I3, to which is welded or riveted the' outwardly extendingfins or buckets l4. These fins or buckets l4 radiate from the hub I5 inwhich is secured the central drive shaft l6.

Arranged on each side and in front of the blower are snow cutting andimpeller wheels ll. These wheels ll each include a disc-shaped back hubplate l8 and radially extending blades l9 which radiate from the hubs26. Rigidly secured to the hubs 2e are driven shafts 2| suitably mountedfor rotary movement in bearings carried by the side walls 8. The snowcutting or impeller wheels ll are arranged in close proximity to theside walls 8; hence, these wheels are inclined inwardly toward theblower.

While I can utilize independent motors for driving the snow cutting andimpeller wheels IT and the blower or fan wheel 12, I preferably utilizea single internal combustion engine 22 of the desired and necessaryhorse power.

This engine is mounted on the frame of the appliance and can be coveredby a suitable casing 23, whereby the engine will be protected from thesnow. The crank-shaft 24 of the engine extends beyond the opposite sidesof the housing 23 and has keyed or otherwise secured thereto beveledgears 25 meshing with similar beveled gears 26 keyed or otherwisesecured to the counter-shafts 21, which extend forwardly toward the snowcutting impellers II.

The forward end of the counter-shafts 21 are connected to the stubshafts 2| of the impeller I! by means of beveled gears 28 and 29.Obviously, equivalent means can be utilized for the beveled gears andcounter-shafts without departing from the spirit or scope of myinvention.

The fan wheel I2 can be driven by means of a chain 30 and sprocketwheels 3| and 32 carried respectively by the stub shaft iii of the fanand one of the counter-shafts 21.

If so preferred and desired, housings 33 can be provided for encasingthe counter-shafts and beveled gears.

The rear ends of the side beams 5 of my snow removing appliance A arepreferably connected to the frame of the propelling truck or tractor bymeans of heavy hinge pins 34, whereby the appliance A can be raised orlowered relative to the roadway.

To facilitate the raising and lowering of the appliance on the truck ortractor, I can provide a pull cable 35, one end of which can be securedto the appliance and the other end of which can be wound about aWindlass 36. An intermediate portion of the pull cable can be trainedover a pulley sheave 31 mounted on the truck or tractor adjacent to itsupper end.

The blades I9 of the impeller I! can be riveted or welded onto thedisc-shaped back plates l8, and where the blades are riveted the samecan be of an angle-shape so as to provide an attaching flange forabutting against the said back plates.

In operation of my improved device, the same is pushed over the roadwayby the propelling truck or tractor, and the blade 1 tends to scrape upthe snow. The impellers I! cut into the snow and carry the snow back tothe fan blower, which effectively ejects the snow at one side of theappliance and blows the same a considerable distance from the roadway.

Due to the inclination of the impeller wheels [1, the snow isefficiently handled without strain on any of the parts.

Changes in details may be made without departing from the spirit or thescope of my invention, but what I claim as new is:

In a rotary snow removing appliance, a frame, a housing at the front ofthe frame including a bottom scraping blade, inwardly inclined sidewalls, and a connecting top wall, a transversely extending internalcombustion engine carried by the frame having its crank-shaft extendinginwardly from the opposite ends thereof, rotary snow cutting impellerscarried by the side walls inclined inwardly toward the longitudinal axisof the appliance, a centrally disposed blower arranged directly in rearof the snow cutting impellers for receiving snow therefrom, said blowerhaving a tangentially extending outlet leading from one side of theappliance, counter-shafts rotatably mounted on each side of the blower,means operatively connecting the counter-shafts to the ends of thecrank-shaft of the engine, means operatively connecting the snowimpellers to the forward ends of the counter-shafts, and means foroperating the blower from one of the counter-shafts.

. JOSEPH HANSEN.

